Intake-manifold valve lock



w, WILBUR. INTAKE MANIFOLD VALVE LOCK.

APP LICATION HLEQ APR: 10' l9?2.

Patented Dec. 12, 1922.

2 SHEETS-EFT 1.

I V gwoozfyfoz wwm 6 5 1 1 W. WILBUH.

INTAKE MANIFOLD VALVE LOCK. APPLICATION FILED APR. I0, I922.

Patented Dec. 12,1922,

2 swans- 11251 2.

'lnventoz Wal -W, l/v'ZEwr Patented Dec, i133, i922,

WILLIAM WILBUE, or counci stores, Iowa.

INTAKE-MANIFOLD VALVE LOCK.

Application filed April 10, 1922. Serial No. 551,029,

Valve Locks, of which the following is a,

s' ecification, reference being had therein to the accompanying drawings.

The invention relates to valve locks used in connection with intake manifolds of internal combustion engines, and has for its object to provide avalve located inthe intake manifold between the intake ports and operable from within the automobile and adjacent the instrument board.

A further object to provide in combination with a pivoted discvalve located within the intake manifold of an internal combustion engine carried by an automobile a casiug extending through the instrument board and housing a plurality of longitudinal movable key actuated plungers forlocking the valve in closed position or allowing the valve to open.

ll ith the above and other objects in view the invention resides in the combination and arrangement of parts as hereinafter set forth, shown in the drawings, described and claimed, it being understood that changes in the precise embodiment of the in VGIllilOIl may be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings Figure 1 is a side elevation of a portion of a conventional form of intake manifold and carbureter showing the device applied thereto and showing the device partly in section and extending through a portion of the instrument board of the automobile body.

Figure 2 is an enlarged vertical longitudinal sectional view through the device.

Figure 8 is a transverse sectional view through the device taken on line 3-3 of Figure 1.

Figure 4 is a detail sectional View taken on line it-4: of Figure 2.

Referring to the drawing, the numeral 1 designates a conventional form of intake manifold which leads from the carbureter 2. Disposed in the intake manifold 1 is a valve casing 3, through which products from the carburetor 2 pass to the cylinders of the the carburetor and controlled by a lock engine on the suction strokes of the pistons therein; Extending upwardly and rearwardly fromthe casingv 3 is a cylindrical casing Te in which casing 4c is rotatably mounted a cylinder 5 to which is connected a disc valve 6 located within the chamber 7 ofthe valve casing 3; i It will be noted that when the cylinder 5 is rotated the valve 6 may be placed to extend transversely across the chamber 7 tor cutting off the passageof gases from the carburetor 2 through the intake manifold. It will also be noted that the disc valve 6 may be positioned where it will allow gases to passthrough the manifold. Threaded at 8 tothe outer end of the casing at is a cylindrical casing 9, which has itsjupper end secured by means of screws 10 to the forward side of the instrument board 11. The casing 9 forms means for preventing unauthorized persons from tamporingwith the mechanism hereinafter set forth. i

v lhegcylindrical portion 5 is rotatabh mounted in a bearing 12 in the casing 4L, and in a bearing 13 of the instrument board 1]. is a tumbler cylinder 1a, which houses spaced longitudinally movable tumblers 15. The tumblers 15 are slidably mounted in the bearings 16 of spacing members 17 disposed within the cylinder 14. The lower ends of the tumblers are slidably mounted in bearings 18 of the cylindrical portion 5 carried by the cylinder 14 and which portion ongages the disc 6 or the valve 6. lhe tunn blers 15 extending through the valve 6 and register with spring actuated tumblers 6 in the extension 6 of the valve casing 23. The bearings 18 of the cylindrical portion 5 register with the bearings 20 of the valve 6 and receive the short plungers 6 which are forced inwardly by the springs 22 and are received in the bearings 20. When the valve 6 is locked in closed position as shown in Figure 1, the cylinder 5 and valve (3 are locked together to the valve casing 3 thereby preventing movement of the valve 6, and consequently preventing the passage of gas through the manifold and preventing unauthorized persons from starting the eugine. Threaded into the outer end of the casing a is a bushing 23, which cooperates with a packing 24 for preventing passage of water or foreign matter into the working parts of the lock.

ecured by means of screws 25 to the rear face of the instrument board 11 is a casing 26, in which casing the rear end of the cylinder 14 is rotatably mounted and prevented against rearward movement by engagement with the shoulder 27 of the cars ing 26.- WVhen it is desired to open the look a key is passed through the key entrance of the cylinder la and into engagement with the ends 29 of the tumblers l5, said-"key being so shaped that the lower ends of the tumblers 15 will be moved into registration with the lower side of the valve Gthereby moving short tumblers 6 into the valve'cas- =ing extension and allowing the valve 6 to be opened by rotating the casing 14 by ro- ,tating the key. When it isidesired to jmove the valve to locked position the key is placed locking mechanism is provided for a valve located in an intake manifold of an internal combustion engine, said mechanism being so constructed that the valve may be controlled from within the automobile, preferably from the instrument board, although it may be-from any other part of the aut0- mobile adjacent the operators seat. It will also be seen that by cutting off the flow of The invention having been set forth what is claimed as new and useful is The combination with a valve carried by the intake manifold of an internal combustion engine of a motor driven vehicle and an instrument board carried by said vehicle, of a look for locking said valve in closed position, said lock being carried adjacent the valve, a3 tumbler casing rotatably mounted in a bearing of the instrument board and in a bearing of the manifold, longitudinally movable key actuated tumblers extending through said casing and through the valve, spring actuated tumblers carried inthe manifold and registering with the longitudinal movable key actuatel tumblers, said longitudinally movable key actuated tumblers being proportioned wherebythe spring actuated tumblers will be moved longitudinally for releasing the valve.

In testimony whereof I hereunto aflix my signature. 1 l

WILLIAM WILBUR. 

